Spring-mattress.



F. N. JOHNSON.

SPRING MATTRESS.

APPLICATION FILED AUG.26| 1915.

1,250,892 Patented Dec. 18, 1917;

Witness ln2 enior: 6Q9cw%14 fit iOf JOh 7150 2 @M AMQQW,

UNITED STATES PATENT'OFFICE.

FRITHIOF N. JOHNSON, OF WAUKEGAN, ILLINOIS.

SPRING-MATTRESS.

To all whom it may concern:

Be it known that I. lfiu'rnior X. JOHXsON, acitjzeu of the UnitedStates, and a resident of ll'atikegan, in thee-minty of Lake and Stateoflllinois, have invented-certain new and useful Improvements inSpring-attresses, of which the following is a specification. 1 r g Thisinvention relates to devices designed to be used in vehicles, as acushion to the seat thereof, and in beds, as a mattress, and inotherlike places. y

Thel' obiects of. the invention are to obtain )ring mattress inwhieh thesprings will nece sarily retain the-position in which they ororiginallyarranged-tiwithout the use of ties or other connecti'ii" dees; a mattress whichwwtitlihe.durabhfa'iid. etain its sha a; auda devicewhich will have a comforta 1c 2d feeling tothe person using the same.

I have illustrated a-spring mattress eml'mdyiugthis invention which isparticularly adapted to form the cushion of'a seat in an automobile, inthe drawing accompanying and forminga part of this specification: and

' in said 'drawingl igure l is a top plan view, with the. uppercoverings rcnmvedatv the right hand end thereof. to expose thearrangement: ot'pprmgs to view. i

Fig. 2 is a side elevation of the device illustrated in Fig. 1, with theside coverings removed at the right hand end thereof to expose thesprings to view.

Fig. 3 is a plan view of one end of the covering adjacent to the springsof thede- 1 vice, showing the manner of stitching the same, with thesprings not inserted in place.

And Fig. 4 is a view of the edge, looking down. of the covering which isillustrated in Fig. 3.

A reference character applied to designate a given part indicates saidpart throughout the several figures of the drawing wherever thesame.-appears.

In constructing a spring mattress embodying this invention two strips ofcanvas, or

other suitable material, as heavy woven fah- 'ric, sometimes calledduck,or ducking, (represented by letter A) are placed to register, andthe stitching I is made, to join said parts tcget-hcr, and at the sametime to obtain pockets, (indicated by letter (l). The. length of thestrips are made to correspond with the lenglh of the mattress which isto be made, or with the width of said mattress,

Specification of Letters Patent.

Patented Dec. 18,1917.

Application filed August 2 6, 1916. Serial No.'117,0 35.

as preferred; and at'ter the stitchin completed the springs l) are.inserted in said pockets. These springs are ordinary spiral springshaving one end thereof largfl' thau the other (in d ameter), and hence.\r.h(-uj they are inserted in pockets t. onetheriaif will he msertr tat the larger end of it pocket,

from one edge of material and the nextspring willbc inserted in theadjacent pocket. trom the other edge of said material... \Vhen theseveral pockets whichare obtained by:

stitching li are-tilled in the. manner l-ist above describedthe nppe'and lo\ver e-dges: of said strips are brought 'overon' to*s.=iidspringsand secured together, covering the (see Figs? and 3).,

A plurality of strips A- having zheeiv" stitched at'li, the springsinserted, as described, and the edges of pockets having been turned onto the springs and secured together, a plueality of like constructionsare arranged parallelto each other, and close together, with the largerends of the springs in one construction adjacent to "the smaller ends ofthe springs in the adjacent construction, and said eonst ruct ion's areprovided with an additional cover which is made of suitable flexiblematerial, as canvas, ducking. leather, or the like.

The additional cover is represented by the upper and lower faces F, 1".sides f, f, and and the metal frames (t, (t. The metal frames (l, Gextend entirely around said additional, cover, (ends f, f. as well assides f, The metal frames are made by me of wire, thefunctiou thereofbeing to hold the several constructions formed by the'strips A havingpockets and springs D in said pockets, in suitable relative relationwhen the maitress is being moved about, and not resting on the'seatofthe vehicle. y

An additional cover to the one comprisg 'B is lit) ing faces F, 1*",sides f, f, ends f, f, and 1 frames G, G, may he placed over saiddescribed cover; hut as said additional tuner 'is not an essential partof the lliiltl'ltths enihodying the invention T have not, illustratedit, or described lts construction.

In constructing and using spring mat-- tresses embodying this invention1 find that ad acent rows of springs, inclosed in pockets as described,fit to each other in the same manner that adjacent springs fit in saidpockets; and that the relative positions of the springs are not changedby use of the device.

By reference to Fig. 1, of the drawing, it will be observed that the endspring of each construction or unit, is close to the end of the mattressor cushion; all the springs of the units being in the same lateral linewith the springs of adjacent units, and hence, each unit has the samenumber of springs in it.

The springs of adjacent rows fitting to each other in-the same manner asthe adjacent springs in a given unit, the springs of one row cannot getout of said described position relative to the springs in adjacent rows,and no tying of the springs of one row to the springs of adjacent rowsis required.' It is also obvious that the springs of one row being inline laterally with the springs of adjacent rows a larger number ofsprings are contained in a mattress or cushlon of a given size thancould be contained in said mattress or cushion were the springs of onerow alternate with the ones of ad acent rows.

I claim;

1. A mattress comprising a cover, and a plurality of units arrangedtherein, each of said units consisting of strips of textile materialstitched at intervals to form pockets respectively having one end largerthan its other end, and with the large end of one pocket in the sameplane as the small end of the adjacent pocket, spiral springs in saidpockets, the ends of said spirals correspondmg with the ends of saidpockets, and means to close the ends of said pockets, said unitspositioned in said cover with ad'a cent s rings in adjacent unitsfitting toget er in the same manner as do adjacent springs in each unit.

2. A spring mattress comprising a plurality of units, each of said unitsconsisting of a cover rovided with cone-shaped pockets, in com inationwith spiral springs assembled in said pockets, one end of said springsbeing larger than the other and the small end of one sprin in each ofsaid units being in substantia ly the same plane as the lar and an aditional cover a said 'lurality of units, said units being sembled insaid additional cover with the small end of a sprin in one unit in thesame'line and in su stantially the same lane as the large end FRI HIOFN. JOHNSON. Witnesses:

G. P. JOHNSON, JOHN KAUFFMANN.

e end of the ad'oining spring, apted to hold of the spring beside it Inthe adjoimn unit;

